Free Online Developer Utilities & Converters.
The ultimate suite of client-side developer tools. Securely use our JSON Formatter, JWT Decoder, Base64 Converter, and Checksum Generators directly in your browser.
Powerful tools, processed entirely in your browser.
Experience flagship data formatting and conversion utilities designed for high performance and total privacy.
JSON & Data Tools
Professional utilities for formatting, minifying, and querying JSON, GraphQL, and complex data structures.
Converter Utilities
Seamlessly transform data between Excel, CSV, TSV, and JSON formats with local processing.
Need something else? We've got 22+ more tools.
Browse our complete library of professional developer utilities, from JSON formatters to security decoders and data converters.
Explore Full DirectoryDesigned for Privacy & Speed
Stop uploading sensitive data to random servers. We built Smart Formatter to handle everything locally in your browser.
100% Client-Side Processing
Your data is never sent to our servers. All parsing, formatting, and conversion happens entirely within your browser for maximum privacy and security.
Lightning Fast Performance
Built with modern web technologies to process massive JSON files, GraphQL queries, and generate checksums instantly with zero latency.
Always Free & Updated
A growing collection of essential developer utilities that remain free forever. No registration required, no hidden paywalls.
Frequently Asked Questions
Everything you need to know about the platform and how it handles your data.